/* Copyright (C) 2010  Romolo Camplani, Marco Fortunato, Marco Marelli, Guido Rota, Fabio A. Schreiber et al.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

package org.dei.perla.sys.persistence;

/**
 * Mappa in java il tipo sql Null.
 * @author Luigi Rinaldi & Matteo Rovero
 *
 */
public class Null {

	private Object n;
	
	/**
	 * Costruttore
	 */
	public Null(){
		this.setNull(null);
	}

	/**
	 * Setta un Object a null
	 * @param Null
	 */
	public void setNull(Object Null) {
		n = null;
	}
    
	/**
	 * Ritorna un Oggetto Null
	 * @return
	 */
	public Object getNull() {
		return n;
	}
	
	/**
	 * Implementa il concetto di uguaglianza per due oggetti null.
	 */
	public boolean equals(Object n){
		return ((Null)n).getNull()==this.getNull();
	}
}